Brand:
Whirlpool
Category: Air Conditioner
Document Type: Installation Guide
Language: EN
Installation Guide for WAHMS, WAHME WPIO-355E
Uploaded: Nov. 21, 2025, 7:01 p.m.
Manual Publish Date: 2010-09-01
Warranty Information
To receive the 10-Year Parts Limited Warranty, online registration must be completed within 60 days of installation.
- The manual provides comprehensive installation instructions for Whirlpool WAHMS and WAHME air handlers.
- It covers important safety precautions, including high voltage warnings and carbon monoxide hazards.
- Detailed sections on pre-installation, location, ductwork, electric heat, electrical supply, and refrigerant lines are included.
- Instructions for downflow, horizontal conversion, and condensate removal are provided.
- The document also details motor adjustments, CFM delivery, thermostat connections, and wiring diagrams for various configurations.
- Regular maintenance and assistance/service information are also presented.
Troubleshooting and error codes
| Troubleshooting (Refer to page 8) | |
| Issue | Possible Cause/Solution |
|---|---|
| Condensate drainage issues | Ensure drain pan hole is NOT obstructed. Insulate drain lines. Pitch drain line 1/4" per foot. Install condensate trap. Ensure secondary drain line is run separately if required. |