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Old 05-03-2015, 10:37 AM   #1
rames14
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E7 Error for A/C

First hot day, went to start A/C and get an E7 error for Zone 1. Zone 2 A/C is working. Is there an easy fix? I have a May 14th service appointment, but plenty of warm days between now and then. It says in the thermostat pamphlet that E7 is a complete loss of 120v to control board. No breakers or fuses blown/tripped.
 
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Old 05-03-2015, 03:25 PM   #2
rohrmann
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Even though the breakers appeared to have not tripped, if you haven't already done so, fully turn the breaker off that feeds the non working A/C, and then back on again. You also may want to verify that the 50 amp main did not trip on the leg that feeds that same A/C. Another possibility if all those things are good, is possibly the hot leg came loose from the breaker, or the wire nut connection came loose in the junction box at the A/C. Good luck.
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Old 05-03-2015, 06:19 PM   #3
gccampingaotw
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I have the E7 error code on my zone 1 A/C , new unit never used
A/C .Dealer checked it has bad circuit board. waiting on Board.
First date was April 24 no received , second date is May 4, ??
I am in arizona with one A/C , bedroom one and it is doing ok, have a fan in steps to move air to living area.Of course Phoenix temp
went to 100 the last 2 days
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Old 05-04-2015, 02:07 AM   #4
rames14
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Sounds about right.
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Old 05-04-2015, 02:23 AM   #5
rames14
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Bob, our dealer had the panel out while installing our inverter. It still could be a loose connection. I will let them figure it out, since we haven't even had it a month yet. I was looking for something quick and simple. Did try the breakers to no avail.
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Old 05-04-2015, 03:54 AM   #6
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Ron-- Call Leach and let them know what you are experiencing and if it is a circuit board maybe they can order one and have it when you bring your unit in on the 14th.
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Old 05-04-2015, 12:52 PM   #7
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Rondo, sent Mark an email and waiting a response. I will call tomorrow.
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