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©2021 Micro-Air Corp May 20, 2021, revision 1.4
Installation Troubleshooting
The most common problems during installation are not matching the wires correctly and not
seating the wires in the connector properly. The first step should always be to recheck the instructions
and make sure the wires are seated properly.
The second most common problem is not knowing the thermostat operation. If the system is
running a heating or cooling cycle, the set point will turn red for heating and blue for cooling. When the
thermostat turns white, the heat pump, heat strip and furnace should all be off. The fan may continue to
run for a while after the cycle completes. If a fan is left in a manual mode it will not shut off.
Testing an output
Figure 5 is a table showing the color
label and purpose for each of the thermostat
wires. This information can be used in
troubleshooting to verify that the thermostat
has turned on an output and troubleshooting
the output is required.
Use a voltmeter to verify that the
thermostat has turned on an EasyTouch
output. Set to voltmeter measure DC voltage
and check for ~12 volts between the blue
(ground) wire and the output terminal to be
tested to see if the thermostat has turned on
the output. If there is 12 volts present further
troubleshooting of the component (fan,
compressor furnace, heat pump, heat strip) is
required. If 12 volts is not present, verify that the fuse in EasyTouch RV is still good.
WIFI Troubleshooting
• SSID (Network name) and password are both case sensitive.
• Be sure you are connecting to a 2.4 GHz network and not a 5GHz or 6GHz network.
• Set the security to WPA2 and TKIP+AES if you are having trouble.
• Be sure there is no firewall in the router blocking the incoming messages.
• The thermostat has a limit of 31 characters for the SSID and 50 for the password.
• The number of devices limit for the network is not full.
• The WIFI source is not out of range or metal partitions blocking the signal
• Reset the router to renew the DHCP lease.
• If you are in a metal enclosure, try moving the router or thermostat a few inches (even if
temporary) and trying again.
• If using MAC filtering, add the thermostat to the allowed devices list.
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