air conditioner shifted position

[srogers1094]

I have a 2001 Itasca Spirit. The rooftop AC seems to have shifted slightly. The entire unit has moved on one end about an inch or inch and a half. It isn't moving any more and seems to be mounted securely. No leaks evident despite recent heavy rain. Will it do any harm to leave it? I will have to mount the filter grate in a new position to get it to fit. Thanks.

[Old-Biscuit]

Mich F wrote:
Since you have to move the A/C unit, it might be a good time to replace the seal between the roof and the unit. It looks like you've been lucky that it doesn't appear to be leaking. Moving it back to the proper position might be enough to cause it to leak.

Replacing the roof seal requires 'removal' of the A/C unit....disconnected electrically and lift it up out of roof opening.

[Mich_F]

Since you have to move the A/C unit, it might be a good time to replace the seal between the roof and the unit. It looks like you've been lucky that it doesn't appear to be leaking. Moving it back to the proper position might be enough to cause it to leak.

[srogers1094]

Thanks for the help.

[Old-Biscuit]

Take the inside grill off.
In the four corners are hold down bolts.
They are loose...they hold the A/C Unit in position and compress roof gasket to seal from outside.

Loosen all of them......reposition A/C Unit so it is squared up in roof opening.
May need help....lift/push it up to position....don't shove it.

Then tighten the hold down bolts until 'snug'. Don't overtighten. Just snug enough to compress roof gasket.
They get loose over time due to bouncing on roads, gasket getting compressed/aging etc.