I was hoping someone could help me find the source of the problem with our hot water.
We have a gas boiler (not combi) and a programmer that allows us to set HW, or CH+HW, or both off. The CH is working fine, but we get no hot water, or mildly luke warm. We have an immersion heater in the cylinder which we have turned off for now to find the source of the problem.
I've tried reseting the programmer, but the results are the same. I can hear a noise like a pump in either HW or HW+CH modes. When it is set to HW only, the boiler does not fire up (i.e. only pilot), however it appears to fire up for about 1 min every 20 mins or so. The pipes going to/from the cylinder do not appear to be hot. If the boiler fires up for 1 min, the top pipe on the side of the boiler is briefly warm.
I've found a pump under the floor boards with an intake and outtake and a speed setting. After the pump there is a branch with thinner pipes going one way (HW?) and a thicker pipe going another way (CH?). On the CH branch there is a eletrically controlled valve. When both CH+HW are on the CH branch is warm, but the HW branch is not.
I put "HW only" on for 12 hours and I was able to have a very hot shower, but now the hot water is gone. I don't know if this was a glitch or if it just took forever for the HW to warm up.
Here are some details:
Boiler: Glow-worm Space-Saver 45-60B
Programmer: Landis & Gyr RWB252
Immersion heater: Redring P27 3kw
Pump: Grundfos Type UPS 15-50x18 MkII
Valve: Honeywell V4043H
Any help would be most appreciated!
Jeff.
We have a gas boiler (not combi) and a programmer that allows us to set HW, or CH+HW, or both off. The CH is working fine, but we get no hot water, or mildly luke warm. We have an immersion heater in the cylinder which we have turned off for now to find the source of the problem.
I've tried reseting the programmer, but the results are the same. I can hear a noise like a pump in either HW or HW+CH modes. When it is set to HW only, the boiler does not fire up (i.e. only pilot), however it appears to fire up for about 1 min every 20 mins or so. The pipes going to/from the cylinder do not appear to be hot. If the boiler fires up for 1 min, the top pipe on the side of the boiler is briefly warm.
I've found a pump under the floor boards with an intake and outtake and a speed setting. After the pump there is a branch with thinner pipes going one way (HW?) and a thicker pipe going another way (CH?). On the CH branch there is a eletrically controlled valve. When both CH+HW are on the CH branch is warm, but the HW branch is not.
I put "HW only" on for 12 hours and I was able to have a very hot shower, but now the hot water is gone. I don't know if this was a glitch or if it just took forever for the HW to warm up.
Here are some details:
Boiler: Glow-worm Space-Saver 45-60B
Programmer: Landis & Gyr RWB252
Immersion heater: Redring P27 3kw
Pump: Grundfos Type UPS 15-50x18 MkII
Valve: Honeywell V4043H
Any help would be most appreciated!
Jeff.