Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Go Back   Thor Forums > Thor Tech Forums > Maintenance and Repair
Click Here to Login
Thread Tools Display Modes
Old 06-27-2020, 07:18 AM   #1
Senior Member
Bratmanstudio's Avatar
State: California
Posts: 106
THOR #8228
Motorized slow rise windshield shade won't go up, only down!

Miramar 34.2 - 2015 coach. I press the up and it acts like it wants to go up but doesn't, down works normal... any one have this problem or a clue how to fix it? Irvine shade brand.

Bratmanstudio is offline   Reply With Quote
Old 06-27-2020, 02:00 PM   #2
Senior Member
Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 1,382
THOR #2631
I am not familiar with Irvine blinds (motorized or spring controlled).....and looking at their web site briefly (assuming I got onto the correct site) shows only spring controlled blinds from what I saw.

You say your problem blind is motorized though and the simplest motor control method is by using a DPDT (double pole double throw) switch with an Off center position. Usually the up/down positions are momentary only for simple DC motor controls (like your awning). The switch basically should control battery polarity to the DC blind motor. Up position turns the motor one way; Down position reverses the battery connections to the motor so it will turn in the opposite direction. There may be other circuit enhancements to control speed of the motor also. The fact the motor runs in one direction normally should mean the DC motor is OK; I would "suspect" the switch has failed in the non working direction, or a wire/connection has failed open in the failed direction. A basic simple DC motor control schematic is attached for reference.Of course the circuits can also get more complex using relays etc. but I would guess a blind is simple.
Attached Thumbnails
Click image for larger version

Name:	DC Motor Reversing Switch.jpg
Views:	190
Size:	20.6 KB
ID:	24480  
javelin is offline   Reply With Quote
Old 06-27-2020, 09:35 PM   #3
Senior Member
Brand: Thor Motor Coach
Model: Palazzo 33.2
State: Georgia
Posts: 266
THOR #8078
Not sure about your rig, but our front blind has a more complex controller board. It prevents the blind from going down while the engine is running and is wired to the ignition. Ours shorted out and our blind would go up but not down, opposite of your problem. I had to replace the entire circuit board, located way under the dash requiring a contortionist to access it.
rudyhehn is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.

All times are GMT. The time now is 09:06 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2