Question about Heating & Cooling
I have a Fujitsu heat & Cool reverse cycle ASU12R1A with AOU12R1 wall mounted system. I bought this unit in 2003 in Canada from a Fujitsu retailer. On May 2006 the system went down. It was determined the compressor failed. The unit was fixed under warranty. The system went down again Dec 2006. Same issue repeats itself including coverage for warranty. The system fails again April 2009. The retailer claims that the system is down again because of the compressor, which is not covered anymore. The retailer claims that Fujitsu is not responsible anymore? I have written to Fujitsu for assistance in this matter and waiting for a distributor to contact me. Questions: 1. Is it normal for a Compressor to be faulty 3 times in 6 years ? 2.Is there a recall that I should know about? 3. Is the retailer possibly responsible for wrong dianostic, and where does this leave me? I will ask the same questions when a Distributor from Fujitsu contacts me... Thanks Jacques Croizet 116 Chemin Vigneault Cantley, Quebec J8V3A6 819 671 7064 firstname.lastname@example.org
1st time a compressor fails the service tech is suppose to determine the cause of the
Failure and fix it. Is it no oil return or oil being washed out of compressor do to low sump superheat,
liquid slugging do to thermostatic expansion valve or orifice flooding compressor,starving
for refrigerant do to thermostatic expansion valve or orifice not supplying enough refrigerant to keep the compressor cool, or is the reversing valve shifting properly or electrical,such as bad defrost board, capacitor,relay or electric component or connection, etc.
With multi-compressor failures until you determine the cause and fix it you will keep having this problem
And when a heat pump compressor fails if it’s a burn out, such as electric short or long running at high temperatures and pressures or low on refrigerant level not enough cooling back to the compressor, Causing the refrigerant to break down and create an acid. You need to check the oil in the bad compressor to see if there’s acid in it, then replace the compressor, reversing valve, accumulator (the oil and contaminents will accumulate here and you can‘t get it out), thermostatic expansion valve or orifice, liquid drier, suction line filter drier (if it’s on the lineset outside of the unit then you need to put it inside the unit as close to the compressor as possible).
And after running the system for a couple of days, then the liquid drier and suction filter should be replaced again, depending on how bad the burnt out was or if there‘s acid still in the system you might need to replace them again.
It’s hard to say who would be responsible but there’s something other than the compressor causing the problem and you need to find out what it is.
Posted on Apr 25, 2009
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Posted on Jan 02, 2017
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