Service Bulletin 22-0011-MH-1MBTU

To: All customers
Date of Notice: 2/25/22
Subject: MH1M Software Update 2.6

Product Line: Maxi Heat
Model: MH1MBTU
Serial Numbers: All units
Expiration Date: 3/31/22

Safety Bulletin:

1. An update for the MH1M heaters is now available. This update will now add a "warm up mode" at start up so that the engine and generator have time to stabilize. This is a 15 second warm up period and will display itself on the screen, prohibiting the startup of the burners until it has finished. Work instructions will be supplied with the flash drive for the update detailing the update procedure.

Corrections and Instruction:

1. Allmand will be supplying flash drives for the unit updates. This update will take approximately 4 1/2 minutes to complete.

2. Customers will need to follow the work instructions supplied with the software update flash drive.

3. Allmand has a video on our website and YouTube channel detailing the procedure to access and perform the software update on your MH1M units.

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