wilks
07-06-2011, 07:31 PM
Hello all
Got called out today to a city multi vrf on r407c. It was showing a 5104 fault which was outdoor thermister error , I found which thermister which was causing the fault, it was the thermister on the accumulator higher not lower I think . When I looked closer at the pipe or mini accumulator that the thermister was connected to I found some tiny heater cord wrapped around it, the heater cord was melted and damaged . Upon checking the the relay that powers the heater I found that it was welded closed, it's only ment to pulse on and off. When I unplugged the heater the original fault cleared and the unit ran for about 40 mins, then I got 1500 fault ( too much compressor cooling). Could the to faults be related ?? Thanks lads
Got called out today to a city multi vrf on r407c. It was showing a 5104 fault which was outdoor thermister error , I found which thermister which was causing the fault, it was the thermister on the accumulator higher not lower I think . When I looked closer at the pipe or mini accumulator that the thermister was connected to I found some tiny heater cord wrapped around it, the heater cord was melted and damaged . Upon checking the the relay that powers the heater I found that it was welded closed, it's only ment to pulse on and off. When I unplugged the heater the original fault cleared and the unit ran for about 40 mins, then I got 1500 fault ( too much compressor cooling). Could the to faults be related ?? Thanks lads