Question:
When would there be a heter to call an appliance service company to fix a laundry machine on Chol Hamoed (the main need of it is for right after yom tov and to schedule for after then would make it very challenging since they don’t come right away)
Answer:
Assuming that the company will not do any actual writing, ( only via the computer) which would be a melacha d’oraysa, it would be permitted.
