Error code
Mitsubishi Electric PQHY/PQRY code 2000
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Meaning
Pump interlock error: 1) This error is detected by the pump interlock circuit (TB8 3-4). 2) If it is detected that the pump interlock circuit (TB8 3-4) is open (first detection) during operation or immediately before startup, the heat source unit stops and goes into the 3-minute restart delay mode. 3) If the pump interlock circuit (TB8 3-4) has remained open for continuous 10 minutes (second detection) since the first stoppage of the heat source unit, the unit will make an abnormal stop, and the error code "2000" app
Member details
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View details as a memberPossible causes
(1) Heat source water circulation pump (2) Broken wire (3) Loose connectors or contact failure (4) Interlock signal input circuit fault on (5) Interlock signal input circuit fault on board (6) SW4(917) setting error (7) SW4(901) and SW4(917) setting error
Solution
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Address of this page: https://www.remfixit.com/tr/mitsubishi-electric/pqhy-pqry/2000