Skip to Content

Friedrich Wallmaster Air Conditioner: the missing manual instructions

This post may contain affiliate links and/or codes. You won’t pay anything extra, but I might make a commission.

Is your Friedrich Wallmaster manual missing instructions, or giving completely wrong instructions? It’s not up to date. But I have the missing instructions for turning off the timer, turning off the check filter alert, and taking the cover off.

A Friedrich Wallmaster air conditioner in the wall, surrounded by a cabinet.

The Friedrich Wallmaster manual

We purchased our Friedrich Wallmaster through-wall air conditioning unit in 2019. It came with a manual, the same manual that’s found online. The current manuals seem to be for a previous model of the Wallmaster, and they just didn’t bother to update the manuals anywhere.

I’ve scoured this manual backwards and forwards, and it is out of date for my AC unit. It refers to buttons that don’t exist, and leaves out some very important information. And in at least one case, it gives instructions that may cause you to break your AC unit.

Through a ton of Googling and even more trial and error, I’ve figured out a few things that the manual simply does not tell you, or gives you the wrong instructions for.

Which model do you have?

I don’t know what the official way is to tell whether you have an up-to-date manual or not, but if your air conditioner looks like mine, but does NOT have a “Check Filter” button, you probably have a manual that’s not current.

How to turn off the timer

The Friedrich Wallmaster has a timer function, which is handy if you want it on. If you don’t, you won’t find instructions in the manual on how to turn the timer function off.

It’s pretty simple: hold down the up and down arrow buttons at the same time, until the timer function turns off (the screen should say “Schedule Off”). If you want it back on, do the same thing.

How to turn off the “Check Filter” alert

Our screen had said “Check Filter” for a couple of years, because even though I’d been cleaning the filter about once a month, I had no idea how to turn the alert off.

The manual says to press the check filter button, but my unit doesn’t have one!

To turn off the “Check Filter” alert, hold down the “FAN” and “SPEED” buttons at the same time, for about five seconds. It may take a few tries, and you have to make sure that you’re pressing each button in the center the whole time.

How to take off the cover to clean the filter

The manual will tell you to pull the cover until it comes free. I wonder how many people have broken their covers trying to do this? Again, these instructions are not up to date.

Friedrich has made a video showing how to remove the cover of the Wallmaster, but their instructions don’t quite work for me. Here’s what they say:

I’ve found that while their instructions do work to release the top half of the cover, I have to repeat it to release the bottom half. So after I’ve pulled back on the top left corner and hit the right side with my palm, I have to pull back on the bottom left corner and hit the right side again.

HTML tags are not allowed.

131,101 Spambots Blocked by Simple Comments

Mila

Thursday 3rd of August 2023

Thank you so much! It sure helps . My model is WCT1030A and I bought it June 2022. My manual has MENU button instructions for sub-menus and there is no MENU. My issue is in AUTO mode my AC just does not want to turn on. I set the temperature on 69 degrees, but the temperature in the room climbs to 75 and it still does not start. With ON mode I have no issues

JBT

Sunday 7th of July 2024

@Mila, the MENU button is on the underside of the lip between the control panel and the filter. Not intuitive at all based on the manual.

Ben

Monday 11th of July 2022

omg thank you. i was playing around with the TM menu and couldnt' figure out for the life of me how to turn off the darn timer i had set. you rock. bookmarking!

Amy Oztan

Friday 5th of August 2022

@Ben, ha! Thank you!! No coffee necessary, just knowing that I saved someone the frustration I went through is enough.

Ben

Friday 5th of August 2022

@Amy Oztan, Oh and if you ever find yourself near UnSqr, I will happily buy you a coffee for saving me from putting my fist through this thing... :-)

Ben

Friday 5th of August 2022

@Amy Oztan, OK now I officially love you. Today my Check Filter indicator went on for the first time. Took the filter out, brush cleaned it, and of course the manual says to reset with the non-existent Check Filter button. Thanks for saving me a few years of anguish.

Amy Oztan

Monday 11th of July 2022

You just made my morning!!

Howard

Saturday 30th of April 2022

Just installed my wct10a30a wallmaster ( to replace another 12 year old one. I agree that (especially for the cost of the units), the owners manuals are severely lacking and when l called customer service, they agreed w/ me that there were no instructions on how to remove the front snap on cover so as to do my installation. The last thing l wanted to do was break the plastic facia on my new a/c as to access the four screws to remove the main front trim. Very poor customer manual. Only after l complained, did the customer rep tell me about the Friedrich You Tube video showing how to remove the first outer cover. One should NOT have to "jump thru hoops" to be their customer !

Amy Oztan

Monday 2nd of May 2022

I just don't understand why they make it so hard. They have to get these calls all the time, so if they aren't going to update their online manuals, they should at least have good answers ready for the call center.

Jodi Savitsky

Saturday 18th of September 2021

Thank you. I thought I was going crazy. This was so helpful.

Amy Oztan

Sunday 19th of September 2021

You're so welcome! I can't believe such a big company is so careless with instructions.

Privacy Policy ~ Full Disclosure ~ Disclaimer