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I have replaced check valves in Trane coils to a spring loaded valve to prevent a banging or load knocking sound coming from the air handler in the heat mode before. Also just a couple days ago we...

Because I see a lot of them driving to work in the A.M and they look to operate just like yours. Some brand frost from the bottom up and some from the middle out, it all depends how they feed...

We have Certified Energy Raters in Florida that have to commissioned even replacement systems starting in May and duct leakage rate, before you can get final inspection. The cost of business will go...

Looks like normal operation from that picture. The frost lines are determined by where the refrigerant feeds into the coil and how much heat it's picking up.
Where there is no frost is where the...

Now the boards are set by coil termination temp and no run time sensor check settings. You only have coil temp termination. 50/60/70 on some models. Trane units will average 10 defrost cycles and...

Sounds like they need to check your static pressure on the duct system, that is the only way to know if the duct system is correct or not. You design a duct system per the specs, of the a/c system...

Does the vibration occur all the time in the heat mode? Or just sometimes? If it's after defrost you can change the defrost control to a soft shift model. This will bring on the condenser sooner to...

Also I'm assuming that if you live in snow country that the condenser unit is raised off the ground three feet?

If it's keeping temp setting in the house don't worry about it, it's normal to frost up to near 80-90% of the coil. Not knowing if it's a demand defrost control or not it's hard to say how much frost...

Do you have a gas furnace as one of your auxiliary heat sources or is it electric? With a 3800 sg ft house it's hard to believe that you have to much air flow with a 5 ton system. The 3800 sq ft is...

No way, I was just repeating what I have had to tell customers all winter long due to our unusually cold winter so far.
" Why is my Heat pump running"- Because it can't walk.
Why does my air...

The condenser motor support grille on RQNJA package units is not strong enough and will cause noise especially in the heat mode when unit builds frost. Order the new replacement grille for motor and...

Call me when it stops running.

It sounds like the tubing near the TXV valve in the coil is vibrating against the coil. They should insulate the tubing near the TXV and strap or support it better, this might help. The over sized...

Sorry I thought we were talking about a split system. This model indicates a package unit. 13 seer.

We have had issues with complaints on those units that it sounds like a helicopter when it...

I hope that works out. This will help if it is in deed the Defrost cycle causing the noise or start up. If it continues to be a problem. Take more notes on when it happens as far as weather...

Sounds like the old 2.5 was over sized also? You must of had problems before and did not know. Go to www.rheem.myvirtualhvac.com and find out what size unit you should have.
Make sure what ever is...

Adjust the lock out temp for a higher temp..I hope we are capalable of doing that. The shuttle just landed.
3 Degree's is not reasonable.

All Trane boards are considered soft shift. Meaning they bring on the condenser fan to lower the pressure before they shift the valve...Aren't they nice....
This stops the swishing noise...

I was born in West Des Moines, live Florida now it's 82 today>>>>>>

I hope so....

It can only be a RPN_ 30JAZ if it's a 2.5 ton 15 seer matched with a RHL-HM3617JA air handler.
That was a Rheem fishing trip in Costa Rica so I hope I can help.

Thanks...It was out of site!@!

I'm sorry for I have sinned...I did not read your complete blog. It is a heat pump but the model# indicates a XL16i not XL13i. If so it's 2-stage R-410A refrigerant Heat Pumper...

Xl13i could be a heat pump or a cool only. This is only the style of unit not the model number. The XL13i is a single stage unit. Not knowing how many heat stages you need need it could mean 2H/1C or...