Upvote:4
You have a UK residence permit. I assume that it is valid. With a valid residence pemit, you do not need a visa to enter the UK.
Among other visa exemptions from TIMATIC, you will find this:
Visa required, except for Passengers with an EEA Family Residence Card issued by the United Kingdom.
One source for TIMATIC data is https://www.klm.com/travel/gb_en/prepare_for_travel/travel_planning/travel_clinic/visaform.htm