2008_m_clarke
22-11-2009, 12:21 PM
hi i am having problems with my daikin a/con
it is a 4mk90hvec it is a multi-split system 4 indoor heads into the outdoor unit it has been working for years without a problem then the main room would only come on when you swithched it to fan and when you switch it to cool it shutts off this has been happening for a few months i am getting a u4 error code now the other remaining systems run for about a few hours then they shutt off they have recently been coming up with either u4 or a5 error codes the only way to get them working is shutting the power to the outdoor unit then back on then they work good for another hour or so i don't know a lot about these aircon systems the units have been thoroughly cleaned the led indicators on the outside pcb only one green flashing light that indicates no faults can anyone please help me thanks
it is a 4mk90hvec it is a multi-split system 4 indoor heads into the outdoor unit it has been working for years without a problem then the main room would only come on when you swithched it to fan and when you switch it to cool it shutts off this has been happening for a few months i am getting a u4 error code now the other remaining systems run for about a few hours then they shutt off they have recently been coming up with either u4 or a5 error codes the only way to get them working is shutting the power to the outdoor unit then back on then they work good for another hour or so i don't know a lot about these aircon systems the units have been thoroughly cleaned the led indicators on the outside pcb only one green flashing light that indicates no faults can anyone please help me thanks