Hi there could any one give me some answers.
I visited a job yesterday, the boiler was a baxi 80e it was operating on CH & HW but on low flame, the boiler still operated when the temperature gauge was turned right down, at first i thought it was the thermistors but they both gave the correct reading on the multimeter. I was inclined to think that i was the pcb not sensing the temperature fluctuations though the thermistor. Any way i changed the thermistors on CH & HW on removing the CH thermistor i found it covered i a white paste type substance. I installed the new themistors and hay presto everything worked. I have just moved down to kent from yorkshire and i'm still trying to get used to all this hardwater down here and the problems it can cause. Would the white paste be the calcium in the water that has perhaps reacted with the inhibitor in the CH system, i thought the calcium would be hard and coat everything.
1st time user - I found all the information on the other topics very good. sharing info is a great idea, if it saves time and customers money.
I visited a job yesterday, the boiler was a baxi 80e it was operating on CH & HW but on low flame, the boiler still operated when the temperature gauge was turned right down, at first i thought it was the thermistors but they both gave the correct reading on the multimeter. I was inclined to think that i was the pcb not sensing the temperature fluctuations though the thermistor. Any way i changed the thermistors on CH & HW on removing the CH thermistor i found it covered i a white paste type substance. I installed the new themistors and hay presto everything worked. I have just moved down to kent from yorkshire and i'm still trying to get used to all this hardwater down here and the problems it can cause. Would the white paste be the calcium in the water that has perhaps reacted with the inhibitor in the CH system, i thought the calcium would be hard and coat everything.
1st time user - I found all the information on the other topics very good. sharing info is a great idea, if it saves time and customers money.