Error code
Mitsubishi Electric PQRY code 1500
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Meaning
Refrigerant overcharge: An error can be detected by the discharge temperature superheat and by the liquid level of an accumulator shown below. 1.If the liquid level of an accumulator AL=2 (overflow level) is detected during operation (the first detection), the heat source unit stops at once, turns to anti-restart mode for 3 minutes, and restarts after 3 minutes automatically. 2.If the liquid level of an accumulator AL=2 (overflow level) is detected again within 30 minutes after first stop of the heat source unit (the s
Member details
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View details as a memberPossible causes
(1) Overcharged refrigerant (2) Liquid level heater disconnection (3) Heater failure by control board failure (4) Thermistor failure (TH3, TH4) (5) Themistor input circuit on the main board failure (6) Faulty mounting of thermistor (TH1, TH3, TH4) 3.If the liquid level of an accumulator AL=2 (overflow level) is detected more than 30 minutes after the heat source unit stops, and the operation described in step 1 above will start. 4.For 30 minutes after the stop of the heat source unit, preliminary errors will be displayed on the LED display.
Solution
Solution steps are not shared for faults that may be dangerous.
No do-it-yourself solution is given for this fault. For your safety, call an authorised service.
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