Need a remote control for comfort aire pe-121a

order one online --check with manufacturer for distributor near you --or a heating store near you

You can check the wiring but this looks like an incompatible controller. Here are some alternatives:

If you're looking to purchase an Evaporative Cooler Vulcan Touchpad Controller, there are several options available. Here are some places where you can buy one:

The Home Depot: You can purchase a DIAL Evaporative Cooler Digital Controller from The Home Depot for $64.48.
Gasstop: Gasstop offers a refurbished wired Bonaire Comfort Control remote that works with Bonaire and Vulcan gas central heating systems for $150.
Bonaire Heating & Cooling: Bonaire offers a range of Navigator Remote Controls for Cooler and Heater, including My Climate® Wi-Fi® for ducted evaporative cooler, ducted gas heater, or dual-cycle air conditioner.

Navigator Remote Control for Cooler and Heater (bonaire.com.au)

AccuLink Remote Control - American Standard

https://www.americanstandardair.com/.../acculink-remote-control.html

Find more information on the AccuLink Remote Thermostat available from ... terms for your AccuLinkTM Remote Thermostat, please refer to your owner's manual ...

Thermostat Controls - American Standard

https://www.americanstandardair.com/products/thermostat-controls.html

Discover thermostats and get a digital thermostat for your home with American Standard. ... 7-day programmable comfort; Remote monitoring and programming ...

Free American Standard Thermostat User Manuals ...

homeappliance.manualsonline.com/manuals/.../american_standard/ameri...

Products 1 - 34 of 34 - Find the user manual you need for your home appliance products and ... American Standard Central Thermostat Installation Instructions.

Free American Standard Air Conditioner User Manuals ...

homeappliance.manualsonline.com/manuals/.../american_standard/ameri.

They're on eBay ... and you can buy them in online shops as well. One example is: http://www.ebay.com/itm/RG51B1-CEU-Remote-Control-For-PSH-141A-PS-81A-PS-101A-PS-121A-Air-Conditioner-/181415450621?pt=US_Remote_Controls&hash=item2a3d3417fd

Otherwise just google for "AAC101STA remote".

Try viewing the owner's manual here for further instructions about the reservoir. Page 10 of Heat Controller Inc OWNER MANUAL Portable Air Conditioner PE...

There are universal AC replacement remote controls available in the market.

Remotes are a pain. Can you get into the unit to see the control box? You need to see if the unit has power. If its new enough it will have some diognostic lights so you can see if it has power. Without that its hard to diognose. Unit Model number is also helpfull. if it looks like the one on this picture it will be etched into a badge on one of the corner pillars. if its a plastic unit it will be on a sticker inside the unit

If you need a remote for your ac unit go to ebay. You can get a universal remote for your unit. Russ

looking 4 manual 4 comfort aire a.c. model#pe-121a serial# 070301060