Guide :Home & Garden

Whalen heat pump

Whalen heat pump. Was working fine, but I decided to install new honeywell RTH7500D thermostat. Connected wires, set program... fan kicks on but no heat? Blue, red, yellow and green. Blue to O/B ...

Loading ...

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || || Terms of Use || Contact || Privacy Policy
Load time: 0.0090 seconds