| My
Outdoor Unit Will Not Come On This is
not an unusual problem whether it is an air conditioner
or heat pump. Unfortunately, many times the service
technician finds a simple solution that the homeowner
could have easily corrected and saved both the
cost of a service call plus the inconvenience.
Below is a list of possible causes. Items in
blue can be addressed
or fixed by the homeowner. Those in red
usually require a service call.
- Thermostat not set
properly
- Emergency switch or
shut-off switch turned off
- Blown fuse in panel
box
- Circuit breaker tripped
or off
- Outdoor disconnect
turned off
- Off on outdoor reset
button
- Unit locked out (reset
by turning off then turning back on)
Here is a checklist to go
through before making a service call:
- Make sure the thermostat
is calling for heating/cooling\
- Make sure no Emergency
switches are turned off
- Make sure circuit breakers
for both indoor and outdoor units are in the
on position (reset for certainty)
- Make sure the outdoor
disconnect is on
- Defective thermostat
- Defective contactor
- Defective time-relay
control
- Defective thermostat
cable
- Off, on safety device
(low pressure, high pressure, low temp, high
temp.)
- Defective control module
Hope this has been of some assistance, however
they are just rough guidelines and not all possible
conditions are covered.
Remember: The
company You Choose To Install and Service
Your System Will Determine The Degree of Comfort
and Satisfaction You Enjoy.
Excerpts of the preceding information has been
compiled by Hannabery
HVAC, which has graciously permitted us to
include them on this web site as a service for
all homeowners.
These
"Common HVAC Problems" are provided FREE and as
a consequence Climatemakers does not assume any
liability resulting from any information we provide.
In all cases where there is any possibility of
injury, consequential damage, direct damage to
your equipment or when recommended by the equipment
manufacturer, your system should be repaired,
inspected or maintained by a qualified technician.
Got a question? Need more information?
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here.
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