Had a quick look at it , didnt have a multim with me . Power up and pump runs without a demand . Put a demand on , nothing happens pump just keeps running no power at aps or fan ? Any ideas anyone . Thanks ....
ravenheat csi 85 bt.
- Thread starter lee32
- Start date
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Don't even go to a modern boiler without a multimeter.
Temperature sensor. Boiler thinks it's already hot would be my guess.
Temperature sensor. Boiler thinks it's already hot would be my guess.
Thanks dc, do u mean the overheat cut out or the c.h. sensor
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If the pump is running the boiler probably thinks it's hot.
Check your thermistor valves resistance values would be a good start.
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