ClimateMaster Tranquility Digital - DXM2 Dipswitch and Reversing Valve Tests; Checking DXM2 Dipswitches; Magnet Test for Reversing Valve

43
Troubleshooting Guide - Tranquility
®
Digital (DXM2) Packaged Units
Rev.: 01/15/14
Magnet Test to Shift Reversing Valve into Cooling
B-H
B-H
Discharge line
Line to
air coil
Line to
coax
Line to
compressor
(suction)
Strong magnet
placed on air
coil side
Checking Dipswitches on DXM2
B-G
B-G
Use a magnet to pull the internal slide to one side or another.
Verify that dipswitch number 1
is in the ‘On’ position.
If dipswitch number 1 is in the
‘Off’ position, the thermostat
will not function.
Under most residential
situations, dipswitch banks
1 and 2 will all be in the ‘On’
position.
If any of these dipswitches
need to be switched to ‘Off’,
consult the DXM2 AOM
(97B0003N15).