Troubleshooting
Before you call for service....
Save time and money! Review the chart below first and you may not need to call for service.
CAUTION
For your safety, DO NOT attempt repair of electrical wiring, controls, heating elements or
Problem
OPERATION AND PERFORMANCE
Not enough or no hot
water
Water is too hot
Water heater is mak-
ing the room cooler
49-50300-2
Possible Causes
Water temperature may
be set too low
Hot water usage pattern
exceeds the capability of
the water heater in current
mode
Cold water inlet tempera-
ture may be colder during
the winter months
Leaking or open hot wa-
ter faucets
Long runs of exposed
pipe, or hot water piping
on outside wall
Not enough clearance to
allow air to circulate for
the heat pump
Room is too small or too
cool, slowing heating
performance
A fuse is blown, circuit
breaker tripped, or elec-
tric service to your home
may be interrupted
Inadequate wiring
Manual reset limit (TCO)
Water Connections to
unit reversed
Recirculating System
Interference (if installed)
Water temperature is set
too high
Electric control has failed • Call for service.
Room is not vented
properly or is too small
Heat is removed from the
air to heat the water
What To do
• See the Water Temperature Adjustment and Water Heater
Capacity sections. (Pages 4 & 5)
• Change to different mode.
• Wait for the water heater to recover after an abnormal
demand.
•
This is normal. The colder inlet water takes longer to heat.
• Consider increasing the set temperature as described in
the Water Temperature Adjustment section.
• Make sure all faucets are closed.
• Insulate piping.
• Smaller rooms can lead to cooler room temperatures due
to the heat pump cooling the air. If the room is smaller than
tion.
• Cooler room temperatures can cause the water heater to
take longer to fully recover to the set temperature. Consider
increasing the set temperature as described in the Water
Temperature Adjustment section.
• Replace fuse or reset circuit breaker.
• Contact the local electric utility.
• See the Installation Instructions.
• See the Safety Controls section, see page 4.
• Correct piping connections.
• Insulate piping
• See the Water Temperature Adjustment section.
change with surrounding rooms.
• This is normal.
-
-
-
19