It is always very useful to have a manual at hand to determine the cause of failure of the boiler if it is out of order. There are 2 tables that contain the types of faults of boilers of brand Glow Worm. If you are the owner of a Glow Worm 23C 157104 boiler or a Glow Worm 30CI PLUS 157105 boiler these tables can be of great use to you. In case, if your boiler is not working, in the table you can find a possible way to solve the problems. Sometimes it is enough to check the supply of electricity or water and fix the problem yourself. Look through the table and find out that there is no necessity to call the repairman.
| TYPE OF FAULT | CHECK |
|---|---|
| No domestic hot water or central heating (No flashing warning light on control panel) | • 230V supply |
| • Is fuse blown | |
| • Loose connections on control board (PCB) | |
| • Faulty control or interface board (PCB’s) | |
| No domestic hot water or central heating (A flashing warning light on control panel) | • Water pressure |
| • Shortage of air or gas | |
| • Faulty temperature sensor | |
| • Overheating | |
| • Wrong flue length | |
| • Connections on air pressure switch (electrical or tubes) disconnected | |
| No hot water but central heating ok | • Loose connections at hot water flow sensor. |
| • Faulty hot water flow sensor. | |
| • Faulty control board (PCB). |
| TYPE OF FAULT | CHECK |
|---|---|
| No display on control panel | • 230V supply |
| • PCB fuse | |
| • Connection between PCBs | |
| No domestic hot water No central heating (warning light of fault code displayed on control panel) | • Loose connections on control board (PCB) |
| • Connections on air pressure switch (electrical or tubes) disconnected | |
| • Faulty control or interface board (PCB’s) | |
| • Water pressure, flashing pressure | |
| • Shortage of air or gas | |
| • Faulty temperature sensor | |
| • Overheating |