Have any feedback for us? We'd love to hear it! Call us at (760) 910-7600 and let us know how we are doing.
Mitsubishi 3 ton system with four indoor units services girls bedrooms fourth zone undetermined. Found system pumped down and service valves closed. Open service valves and ran system found high pressure fluctuating. Dumped Freon charge, Installed service valves and pressurized A,B,C and D line-set and indoor coils and found "D" dropping pressure. A,B,C pressure test "good". Determined the fourth zone Is "guest bedroom2 which the indoor unit is stacked in Delara's closet attic. Disconnected "D" from outdoor unit with serve valves installed and evacuated system to 500 microns and weighted in Freon charge. Power up system and ran three good Ports/zones A,B,C. Found Layla's room is zone "D' but indoor unit was running (it should not be) but the guest bedroom 2 indoor unit was not running (it should be). Tested wiring and found wiring for A and D backwards causing the wrong indoor units to run Repaired "Zone A and D wiring" . This would cause icing issues the customer has had in the past