Complain Letter for Machine and PLC Program Malfunction

Want to write a complain letter for machine malfunction and plc malfunction? We are giving you numerous complaint letter templates for the replacement, repair, and return of malfunctioning machines and plc malfunction.

Complaint Letter for Machine Malfunction & PLC Software Malfunctioning

Subject: Machine with a virus and a malfunctioning PLC programme

Dear Sir,

I’d like to take this opportunity to inform you that I recently acquired a (machine name) from your site. You lauded its quality, stability, and functionality. You provided me with a one-year guarantee card in case there were any future issues.

To everyone’s surprise, the (machine name) performed brilliantly for a few months before failing. Now its PLC software is defective, and the output is not as per our requirements. A fault appears to have slipped into the system. Its plastic gauze has split, and bits of its internal body are swinging.

Kindly replace it immediately.

The sender’s name

Complaint Letter for Machine Malfunctioning and Requesting Replacement

Subtitle: Disappointment with the Machine

Dear Sir,

With due respect, I’d like to bring to your attention that the (Machine name) that I purchased from your store on (date) under cash memo No.200 with a two-year warranty ceased functioning correctly after ten days.

The machine has now developed an unacceptable level of noise, and the engine is not smoother. All of this is causing me much inconvenience, and I feel tricked.

As a result, it is required that you either rectify the problems or replace it with a new one in accordance with the guarantee certificate’s requirements. We will be extremely grateful for your speedy response. Many thanks.

With Sincere Regards,

Sincerely Yours,

Your Name

Complaint Letter to Supplier for a Malfuncioned Machine

Company Name,
Address, City

Subject: Requesting a Replacement of Malfunctioned Machine

Dear Sir,

I purchased a (Machine) from your store a month ago on (date) using purchase order no (000). It operated flawlessly for around a month (exactly 25 days). It has now become a source of contention. It makes a loud noise before unexpectedly coming to a halt on its own. 

The machine does not properly word as required. I’m certain it malfunctioned as a result of a manufacturing defect.

I kindly request that you replace this equipment as soon as possible, as it is still covered by the manufacturer’s guarantee.

I’ve been a loyal customer for years, purchasing items on your personal recommendation and trust. I’m looking for an immediate replacement for this (machine name).

With Sincere Regards,

Your Name

Complaint Letter for Malfunctioning Machine to Supplier

M/s. XYZ Electronics

Sub: Lamenting the Malfunction of a Recently Bought Machine

Respected Sir,

Regrettably, I must inform you that the (Machine Name and Model) that I acquired from your store on (dated) under purchase order ( No.000) with a two-year warranty failed to operate after ten days. The machine has now developed an unacceptable level of noise, and the engine is shredding delicate textiles.

All of this is causing me much inconvenience, and I feel tricked. As a result, I recommend that you either immediately correct the flaw or replace it with a different machine as per our requirements. We will be extremely grateful for your speedy response.

Thanks in advance.

Kind Regards,
Name of the sender