My CV850 keet running.....without connecting to any hoses. after review online troubleshooting, I order and replaced the CV850 board with 236L model , it works ! Much cheaper than original part from
had to pop a new hole it it, but worked great
I Installed circuit board on a Silent Master vacuum to replace one with a broken relay so the vacuum would not shut off. The new circuit board fit perfectly and since all electrical connections had slip on connectors it was a simple task to replace by just keeping track of the old wire connections to insure the new ones were installed on the correct terminals.
the product comparable with Duo Vac. the company delivery time is excellent
I installed the board and it works fine.
HAVE DONE THIS 46 YEARS..............BEST SERVICE ACROSS THE BOARD. FEW COMPANIES COMPARE!
FEEL LIKE IT'S A HAND SHAKE & A KISS...WEY COOL TO BUY FRM U.
We have an M&S(AirVac) AV850A 220/240V 10A, but contains(2)110 Volt Motors.
The control board in my unit was obsolete and nonfunctional. Therefore,
I replaced it with this board which worked GREAT assuming is was wired
correctly. See in the Q&A section for this board under the "AirVac AV850 Board?" question for the correct wiring.
A very satified customer all the way from customer service and through
out the entire process !
Thank You so.......... Much!
A great company to do business with !
Frank, Zebulon, NC
MD Vacuum is the best! After paying through the nose for a service call 5 years ago, I searched the net and found MD. I've bought 2 replacement motors and circuit board and couldn't be happier. Their customer service should be a model for other businesses!