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Aaon WSHP Lockout Codes

Article ID: 681
Last updated: 7 May, 2021

Aaon Water-Source Heat Pump: WHA

Re: Diagnostic Codes / Error Codes / Fault Codes

The Red fault light will flash to indicate fault status.

Red Flashes Description
1 High Pressure Switch Fault
2 Emergency Shutdown
3 Auxiliary Alarm
4 Condensate Overflow Fault
5 Low Control Voltage Alarm
6 High Control Voltage Alarm
7 Low Suction Pressure
8 Cold Leaving Water Temperature
9 Low Air Coil Temperature
10 Low Entering Water Temperature

To Reset --> Cycle Power to the board or unit

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Article ID: 681
Last updated: 7 May, 2021
Revision: 3
Access: Public
Views: 2648
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