I have lost the remote of tv haier 21f17ss model.which remote is suitable for this product

Before buying any universal remoter, check if your TV appearse in code listing

If you wish to buy its original remote control, contact the authorized service centre, or authorized dealer to your device brand. They can either give you a genuine remote control to your device, or can direct you, from where can you purchase a suitable one.
To select a proper universal remote control, you should know about the number of digits to its set-up codes. There are 3 digit, 4 digit, 5 digit, 2 digit and even single digit codes, to some brand devices. After confirming this, check the sites linked here. Both the sites have set-up code list and set-up procedure to many popular brand remote controls. Check which brand remote control has set-up code/s to your device brand, and buy that one according to availability? Brand name of the remote control isn't a matter, but it should have set-up codes in its code list, to the device brand you have.
Please note: Every new universal remote control will have set-up code list, and set-up procedure along with its pack. Never accept a remote control, that hasn't both of this. For more details about the set-up codes, visit the site http://electrohelponline.blogspot.com/ Check this site too. http://remotesearch.blogspot.com/ Universal remote controls are available at most of the electronic spare part selling shops.

you have to go to your dealer to order a new one//

you need a new remote. fortunately they are readily available

https://www.google.com/search?q=Haier+model+HWR05XC7+replacement+remote

RCECAOSHAN Replacement for Haier Air Conditioner ...

Amazon.ca https://www.amazon.ca > Replacement-Conditioner-00...

RCECAOSHAN Replacement for Haier Air Conditioner Remote Control 0010403473 Works for HWF05XCK-L HWF08XC5 HWR05XC5 HWR05XC6 HWR05XC7 HWR05XC9-L HWR05XCA ...
Controller type: ‎Button Control
Battery Type: ‎Lithium Rating: 4.6 · ‎341 reviews · ‎$21.97 · ‎In stock

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  Remote Control for HAIER HWR05XC7 HWR05XC9-L ...

  https://www.amazon.ca > HWR05XC7-HWR05XC9-L...
  
  Works as well as Original; No pairing or Code needed,Easy to control ,Hassle-Free Return; Battery type :CR2025,No batteries included; Looks better than the ...
  "); background-repeat: repeat-x; display: inline-block; overflow: hidden; position: relative; background-size: 14px 11.4px; height: 11.4px; width: 68px;">"); background-repeat: repeat-x; display: block; background-size: 14px 11.4px; height: 11.4px; width: 70px;"> Rating: 5 · ‎3 reviews · ‎$20.37 · ‎In stock

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HAIER HWR05XC7 Replacement Remote Control

Remotes.net https://www.remotes.net > products > replacement-rem...
The RTAC562030 is a custom-built replacement remote control to the original HAIER HWR05XC7. It will perform all the functions that the original HAIER remote ...
US$34.90

HQRP Remote Control Compatible with Haier HWF08XC5, ...

Walmart https://www.walmart.com > ... > All Remote Controls

HQRP Remote Control Compatible with Haier HWF08XC5, HWR05XC5, HWR05XC7, ... TCL Roku Replacement RC280 Ultra Remote Control with Netflix Sling Hulu Vudu Key ...
"); background-repeat: repeat-x; display: inline-block; overflow: hidden; position: relative; background-size: 14px 11.4px; height: 11.4px; width: 68px;">"); background-repeat: repeat-x; display: block; background-size: 14px 11.4px; height: 11.4px; width: 42px;"> Rating: 3 · ‎2 reviews · ‎US$12.95 · ‎In stock

Replacement remote for Haier HWF08XC5 HWR05XC5 ...

eBay https://www.ebay.com > ... > Remote Controls

Find many great new & used options and get the best deals for Replacement remote for Haier HWF08XC5 HWR05XC5 HWR05XC7 HWR05XC9 HWR05XC9-L at the best online ...
US$16.00..

there is an universal a/c remote model kt-100a
this type of remote is used to operate your haier
if you dont find the original

Go here: http://www.haier.com/servicesupport/manualSearch.asp
Type in your TV's model number.

We have a Haier TV model 3 HL32R2a, the cable remote no longer turns the set off or on or controls the volume. We can only do that with the tv remote. Tried putting in the universal code, and the Haier code and it didn't work. Please help.

I found the 3 digit code for my Haier tv by auto search it was 226.