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7 different tables below are an excellent manual for owners of boiler of Potterton brand. Each of them describes the possible problems of a particular model of boiler of this brand. Problems of some models can be identified with the help of an error code and can be fixed with the help of information from the tables. In other models, the problem can be identified by visual inspection of the boiler. Before call the service, conduct an independent examination and draw a parallel between identified problem ant the same one in the manual. Perhaps one of these tables will save your time and money.
POTTERTON CONTROLS CUSTOMER GUIDE FOR THE EP2000/EP2002/EP3002 1) THE PROGRAMMER AND YOUR SYSTEM If youhave an EP2000 Programmer, then you can set the HOT WATER and CENTRAL HEATING to come ON together for two time periods a day. Potterton Shown below are boiler manuals. Click on the manual to open it. Alternatively right click to save to a custom location. The manuals title will indicate if they are installation,user manual or other types of manuals or resources. In due course we will provided the ability to search on multiple terms and by GC no. Benchmark Log Book and Potterton Warranty Envelope. Left the programmer showing the current day and time of day. Note: The programmer has default On/Off time periods for both Hot Water and Central Heating. About the Control Panel Status display Window used to show either operating status e.g.
Potterton Diplomat HE Boiler Troubleshooting
Problem | Cause |
---|---|
Pilot will not light | 1. Air in gas line. |
2. Faulty gas control valve. | |
3. No spark at electrode tip. | |
4. Blocked pilot injector. | |
Pilot does not remain alight when knob released. | 1. Over heat cut off device tripped. |
2. Loose connection on leads to overheat cut off device. | |
3. Loose thermocouple connection. | |
4. Faulty thermocouple. | |
5. Faulty over heat cut off device. | |
6. Faulty gas control valve. | |
7. Pilot partially blocked or needs adjusting. | |
» | 1. No electrical supply to burner. |
Pilot established - main burner does not light. | 2. On/off switch is in 'OFF' position. |
3. Boiler thermostat set too low. | |
4. Faulty thermostat or connections. | |
5. Faulty gas control valve. | |
Main burner remains alight when thermostat satisfied. | 1. Faulty thermostat. |
2. Faulty gas control valve. | |
Main burner remains alight when on/off switch in 'OFF' position. | 1. Faulty on/off switch. |
2. Faulty main gas valve. | |
3. Incorrect control circuit. |
Potterton Eurocondense Plus Boiler Troubleshooting
Display flashing (Code-No.) | Description | Explanations (Possible causes and function sequence) |
---|---|---|
10 | Outdoor temperature sensor short circuit or discontinuity | Check connection and outdoor temperature sensor |
20 | Boiler flow sensor short circuit or open circuit | Check connection |
40 | Boiler return sensor short circuit or open circuit | |
50 | Hot-water sensor 1 short circuit or open circuit | |
52 | Hot-water sensor 2 short circuit or open circuit | |
61 | Fault, room control module RRG | Check room control module RRG |
62 | Wrong room control module connected | Connect compatible room control module |
81 | Short circuit on LPB bus or no bus feed | Check bus |
82 | Address conflict on LPB bus (EUROCONTROL) | Check addresses of connected control modules |
91 | EEPROM data loss | Internal BMU error, process sensor, change BMU |
92 | Hardware error | |
100 | Two time master | Check EUROCONTROL timer master |
110 | Limit stat tripped | Allow unit to cool down and reset. If fault occurs several times, notify heating engineer temperature stat open circuit |
111 | Max. temperature tripped | Not heat requirement, pump defective, radiator valves closed |
119 | Water pressure switch tripped | Check water pressure and add water if required |
132 | Safety switch off | e.g. contact F7 or F5 open |
133 | No flame detected (no flame message after expiration of safety time) | Reset, if fault occurs a number of time, notify heating engineer, insufficient gas , check polarity of line power connection, ignition electrodes and ionization current |
134 | Flame failure during operation | Automatic restart attempt by PARAMOUNT |
135 | Incorrect air supply | Fan speed above or below speed threshold |
140 | Impermissible LPB segment number or equipment number | Check setting on EUROCONTROL |
148 | Incompatibility between LPB interface/basic unit | |
151 | Internal error in BMU | Check parameters |
152 | Error in BMU parameter settings | Repeat parameter settings |
153 | EUROCONDENSE EC PLUS disabled | Press reset button |
154 | Temperature fault | Parameter incorrectly set |
160 | Fan speed error | Fan speed not reached |
161 | Max. speed exceeded | Max. fan speed exceeded |
Potterton Potterton 15 Boiler Troubleshooting
Problem | Possible causes | Solution |
---|---|---|
The radiators are cold. | The temperature set point for the heating is too low. | Increase the value with the CH temperature knob or if a room thermostat is connected, increase the temperature on the room thermostat. |
The heating mode is deactivated. | Activate the heating mode. | |
The radiator valves are not open. | Open the valves of all radiators connected to the system. | |
The boiler is not working. | Check that the boiler is being supplied with power. Check fuses and switches. | |
Check whether the gas isolation cock is properly open. | ||
If the property has a prepayment meter ensure it has sufficient credit. | ||
The water pressure is too low (< 0.5 bar). | Re-pressurise the system. | |
The boiler is not working. | The temperature set point for the heating is too low. | Increase the value with the CH temperature knob or if a room thermostat is connected, increase the temperature on the room thermostat. |
No demand for heating. | Ensure that timers & thermostats are calling for heat. | |
No power supply. | Check that the boiler is being supplied with power. Check the fuses and switches. | |
The water pressure is too low (< 0.5 bar). | Re-pressurise the system. | |
The boiler is indicating an error. | Press the Reset button. Correct the error, if possible. | |
The gas pressure is too low. | Check whether the gas isolation cock is fully open. Open the gas isolation cock. | |
Condensate drain blocked. | Check drain, especially any external runs in freezing temperatures. |
Potterton Assure combi 30 Boiler Troubleshooting
Eror code | Description offautt |
---|---|
E09 | Gas valve connection cable |
E15 | Gas valve fault |
E20 | Central heating NTC fault |
E28 | Flue NTC fault |
E40 | Central heating return NTC fault |
E109 | Pre-circulation fault |
E110 | Safety thermostat operated |
E118 | Primary system water pressure too low |
E125 | Circulation fault (primary) |
E128 | Flame failure |
E130 | Flue NTC operated |
E133 | Interruption of gas supply or flame failure |
E135 | Interruption of gas supply (internal error) |
E154 | Flow / return sensor temperature test |
E160 | Fan or fan wiring fault |
E270 | Circulation fault (Dry fire) |
E321 | Hot water NTC fault |
E384 | False flame |
Potterton Derwent Prestige plus Boiler Troubleshooting
Problem | Cause |
---|---|
Boiler does not attempt to light. | a) Check electricity supply is available to boiler and on/off switch is illuminated. The boiler has an integral fuse. |
Control Box does not lockout. | b) Check the boiler is being called to operate. Thermostat calling lamp should be lit unless internal thermostat is satisfied or external control circuit is broken. |
c) Check overheat cut off device has not operated. | |
d) Check power supply is available to control box (see wiring diagram). Replace box if faulty. | |
No Ignition Spark. Pilot does not Light. Control Box goes to lockout | a) Check ignition electrode continuity for earth fault. |
b) Check power supply is available to ignitor during ignition period. | |
c) Check operation of ignitor. Replace if necessary | |
Ignition sparks Pilot does not Light. Control Box goes to lockout | a) Check gas supply is available at the pilot burner at the correct pressure. |
b) Check gas supply is purged of air. | |
c) Check pilot injector | |
d) Check ignition electrode position. | |
Pilot Burner lights Control Box goes to lockout safety time | a) Check electrical supply polarity |
b) Check earth continuity to pilot burner | |
c) Check pilot burner pressure is correct | |
d) Check there is no earth leakage on ionisation probe circuit. | |
e) Check ionisation probe circuit for correct flame current. This is achieved by connecting a DC micrometer in series. A reading of at least 7^A DC should be obtained. If this is obtained and the control box continues to lock out then replace the control box. | |
Pilot Burner Lights. Main burner does not light Control Box does not lockout | a) Check main burner gas cock is open. |
b) Check electrical continuity to main gas valve | |
c) Check operation of gas valve and replace if necessary | |
d) Check control box. Replace if necessary | |
Pilot Burner Lights Main burner lights Control box locks out. | a) Check ignition of main flame is smooth and reliable. |
b) Check voltage supply for interference. | |
c) Faulty Control Box |
Potterton Envoy 30 Boiler Troubleshooting
Error code | Problem | Cause | Action |
---|---|---|---|
1 | Sensor | Flow or return sensor out of calibration | See chart |
2 | Flow sensor | Flow sensor is incorrectly fitted | Check sensor |
3 | Case temperature | Temperature within boiler casing too high | See chart |
4 | Dry fire | Boiler has been fired without water | Check system |
5 | Flow sensor | Sensor failed open or closed circuit | Replace sensor |
6 | Return sensor | ||
7 | Case sensor | ||
8 | Dry fire sensor | ||
9 | Fan speed | Fan speed incorrect | See chart |
R | Shorted signal | Flame signal shorted to ground | Check igniter etc |
C | Flame loss | Flame loss after initial detection | See chart |
E | Control failed | Control has failed | Replace control |
P | Wiring fault | Live on neutral connection | Correct fault |
Potterton Envoy Flowsure Boiler Troubleshooting
Error code | Meaning | Solution |
---|---|---|
L | Last Lockout: | This is when a lockout has occurred and the control has been reset, this event is then stored in the controls memory until another lockout occurs and is reset at which time the display is updated to reflect the new event. |
The type of lockout is shown in the Flow Temperature & Settings Display. | ||
For more information see the Fault Finding Chart. | ||
B | Last Blocking Error: | This is when a blocking error has occurred and then cleared, this event is then stored in the memory until another blocking error occurs at which time the control updates the display to reflect the new event. The type of |
Blocking Error is shown in the Flow Temperature and Settings Display. | ||
For more information see the Fault Finding Chart. | ||
G | Maximum Fan Speed: | This is normally set at 99 which is equivalent to 4680 RPM. this reading should not be changed as it affects the maximum heat output of the boiler. |
J | Minimum Fan Speed: | This is normally set at 40 which is equivalent to 2920 RPM. this reading should not be changed as it affects the minimum heat input of the boiler and may cause noise below this figure. |
F | Fan Speed Offset: | This allows the fan speed to be adjusted in 3 x 60 RPM increments above and below the nominal speed of 4680 RPM - Setting 03 on the Flow |
Temperature & Settings Display. This has been factory set to ensure that the correct air signal pressure is produced and may have been set anywhere between oo and 06. Adjustment in the range is achieved by pressing the + or - buttons whilst the F is displayed in the Status/Function Display. | ||
U | Control Status: | From the information below it is possible to determine the function the control is performing at any one time. This is useful when diagnosing faults, as failure to carry out a step may point to a malfunctioning component. |
Getting more from a British Gas UP2 Timer
TL;DR
The UP2 is a rebadged Drayton LP822, which means that it can operate in 1, 5/2 or 7 day modes, set with a jumper on the back. So if yours is set to 1 day (like mine was) then you can get loads more flexibility by changing that jumper.
Background
Potterton Timer Control Manual Pdf
My central heating was installed with a Potterton EP2002 timer, but when that failed it was replaced with a British Gas UP2 (under the maintenance policy that I’ve had since moving into my house). One of the things that I liked about the EP2002 was its ability to have different timings at the weekend. I asked the engineer if the new timer he was putting in could do that, and his answer was that it couldn’t. If only he’d bothered to read the manual (which incidentally he didn’t leave me with). Fast forward almost a decade and I’ve had enough of getting up at the weekend and having to run downstairs to press the ‘advance’ button for heating and/or hot water, so I started looking for alternatives.
This thread pointed out that the UP2 is a rebadged Drayton Lifestyle timer, though it seems that guesses on the model aren’t quite on target, and are based on how the UP2 has been jumpered. I was on the verge of buying an LP722 when I stumbled on this eBay listing for an UP2 with the vital comment ‘Change type by pins at rear’.
An easy change
Firstly I turned off the heating system at its isolation switch. The UP2 is held onto its backplate with a couple of screws, and can be removed by loosening them and lifting it out and up. I could then get to the jumpers on the back:
Here’s a closer look at the three jumpers:
The top and bottom jumpers should be left alone. The top switches between Linked (hot water and central heating on the same timer) and Independent (hot water and central heating on separate timers). The bottom switches between Pumped and Gravity.
The switch I needed to change was the middle one. It was set to 1 which has the same 24hr timers every day. The other option is 7 which can then be configured to give different timers for each day of the week. If the jumper is left off altogether then it will offer 5/2 mode with different timers for weekdays and weekends, but there’s little point to that as 7 day programming starts with 5/2 and is then further customised for individual days (should you wish).
For full details take a look at the manual for the LP822 (pdf)
After setting the switch to 7 I put the timer back onto its mounting plate and tightened the screws to hold it in place. On powering the system back up I found that it remembered the time and my previous 24h settings, but I was then able to customise the weekend timings using 5/2 mode. I’ve not bothered to customise specific days because I don’t need that. Ticket to ride - usa 1910 for mac.
Conclusion
I’m a bit annoyed that I’ve put up with my timer being on the wrong settings for so long, but pleased that I ultimately found an easy fix (and that I didn’t have to buy a new timer).
Further adventures
I’d like to have more sophisticated control of my heating system, but I’m wary of cloud based services such as those behind Nest, Hive etc. So I’d like to do something Raspberry Pi based, likely starting with the thermostat. If I end up doing that I might return to this video of dismantling the UP2.