McQuay Remington PTAC Series Installation & Maintenance Data page 23

Troubleshooting can present hazards of electricity, rotating parts, sharp edges and weight. Troubleshooting must be done by trained,
experienced technicians only. Improper troubleshooting can result in equipment damage, severe personal injury or death.
Trouble
14. Blinking diagnostic display on control pad
a. E1
b. E2
c. E3
Troubleshooting Chart (Continued)
WARNING
!
Possible Causes
a. Defective room temperature sensor.
b. Defective indoor coil temperature sensor.
c. Defective outdoor coil temperature sensor
(H.P. only).
Treatment
a. Replace
b. Replace
c. Replace
IM 812 / Page 23 of 24